A NOVEL COMPACT SIZE UWB BANDPASS FILTER WITH SHARP REJECTION SKIRT AND WIDE UPPER-STOPBAND BASED ON MULTIPLE-MODE-RESONATOR

2013 ◽  
Vol 43 ◽  
pp. 175-185 ◽  
Author(s):  
Seyyed Jamal Borhani ◽  
Mohammad Amin Honarvar
Keyword(s):  
Bandpass Filter ◽  
Multiple Mode ◽  
Compact Size ◽  
Sharp Rejection ◽  
Mode Resonator

Design of 6-gon-Shaped Notch Filter for Cognitive Radio Applications

2018 ◽  
Vol 27 (06) ◽  
pp. 1850085
Author(s):  
A. Uma Maheswari ◽  
K. Latha
Keyword(s):  
Cognitive Radio ◽  
Return Loss ◽  
Group Delay ◽  
Bandpass Filter ◽  
Narrow Band ◽  
Notch Filter ◽  
Structural Features ◽  
Fractional Bandwidth ◽  
Multiple Mode ◽  
Mode Resonator

This paper presents a 6-gon-shaped bandpass and notch filters for Cognitive Radio (CR) applications. The bandpass filter consists of a 6-gon-shaped multiple mode resonator with interdigital coupling at both ends. The notch filter is derived from bandpass filter by embedding four identical Embedded Open Stubs (EOS) nearby the multiple mode resonators that introduce narrow band suppression in the desired passband. Such bandpass filter with notching band is required in practical CR systems in order to effectively sense the spectrum and avoid the interference between the systems working in same environment with the same frequency. The filter is simulated using an electromagnetic solver, IE3D. The group delay obtained for bandpass filter is below 0.2[Formula: see text]ns. With the above structural features, the overall dimension of the filter is [Formula: see text][Formula: see text]mm2 and the fractional bandwidth (FBW) of the proposed bandpass filter is more than 100% with optimal performances in terms of insertion loss, return loss, group delay and phase.

A Continuously Tunable Bandpass Filter Using Distilled Water Based on Multiple-Mode Resonator

2020 ◽  
Vol 30 (5) ◽  
pp. 477-480
Author(s):  
Jian-Hui Guo ◽  
Sai-Wai Wong ◽  
Jing-Yu Lin ◽  
Yin Li ◽  
Long Zhang ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Distilled Water ◽  
Multiple Mode ◽  
Water Based ◽  
Mode Resonator ◽  
Tunable Bandpass Filter

A Compact and Sharp Rejection Ultra-Wideband Bandpass Filter Based on Short and Open Stub-Loaded Multiple Mode Resonators

2019 ◽  
Vol 15 (1) ◽  
pp. 469-476 ◽  
Author(s):  
Mostafa Danaeian ◽  
Esmail Zarezadeh ◽  
Mohammad Hossein Gholizadeh ◽  
Ali-Reza Moznebi ◽  
Jafar Khalilpour
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Multiple Mode ◽  
Sharp Rejection
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